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marrizza7
04.12.2019 •
Mathematics
If f(x) = 7x - 3 and g(x) = x2, what is (gºf)(1)?
enter the correct answer.
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Ответ:
Step-by-step explanation:
Given:
To find composition function of
of ![f(1)](/tpl/images/0402/8207/24f36.png)
Firstly, we fill find the composition function![(g\°f)(x)](/tpl/images/0402/8207/954b8.png)
⇒
[Plugging in
for
]
⇒
⇒
[Substituting
]
⇒
[As expansion of
]
We can now plugin
in the composition function.
⇒![49(1)^2-42(1)+9](/tpl/images/0402/8207/207b8.png)
⇒![49-42+9](/tpl/images/0402/8207/d031d.png)
⇒ 16
∴![(g\°f)(1)=16](/tpl/images/0402/8207/82e9f.png)
Ответ:
2 times 5 to the second power